用golang实现windterm中rz命令弹出文件选择框功能

要实现WindTerm中rz命令弹出文件选择框的功能，需要使用go语言编写一个WinAPI程序，并在WindTerm中调用它。以下是基本的代码示例：

package main

import (
    "fmt"
    "syscall"
    "unsafe"
)

var (
    comdlg32           = syscall.NewLazyDLL("comdlg32.dll")
    getOpenFileName    = comdlg32.NewProc("GetOpenFileNameW")
    getSaveFileName    = comdlg32.NewProc("GetSaveFileNameW")
    ole32              = syscall.NewLazyDLL("ole32.dll")
    coTaskMemFree      = ole32.NewProc("CoTaskMemFree")
    shell32            = syscall.NewLazyDLL("shell32.dll")
    dragQueryFileW     = shell32.NewProc("DragQueryFileW")
    dragFinish         = shell32.NewProc("DragFinish")
    shellExecuteExW    = shell32.NewProc("ShellExecuteExW")
    shellNotifyIconW   = shell32.NewProc("Shell_NotifyIconW")
    shellGetImageLists = shell32.NewProc("SHGetImageList")
    user32             = syscall.NewLazyDLL("user32.dll")
    sendMessageW       = user32.NewProc("SendMessageW")
    postMessageW       = user32.NewProc("PostMessageW")
)

type openfilename struct {
    structSize       uint32
    hwndOwner        uintptr
    hInstance        uintptr
    filter           *uint16
    customFilter     *uint16
    maxCustomFilter  uint32
    filterIndex      uint32
    file             *uint16
    maxFile          uint32
    fileTitle        *uint16
    maxFileTitle     uint32
    initialDir       *uint16
    title            *uint16
    flags            uint32
    fileOffset       uint16
    fileExtension    uint16
    defExt           *uint16
    custData         uintptr
    hook             uintptr
    templateName     *uint16
    reserved         uintptr
    flagsEx          uint32
}

func rzFileDialog() (string, error) {
    var ofn openfilename
    ofn.structSize = uint32(unsafe.Sizeof(ofn))
    ofn.flags |= 0x00080000 | 0x00001000 | 0x00000800 | 0x00000200 // OFN_EXPLORER | OFN_NOCHANGEDIR | OFN_ALLOWMULTISELECT | OFN_PATHMUSTEXIST
    ofn.filter = syscall.StringToUTF16Ptr("All Files (*.*)\x00*.*\x00\x00")
    ofn.file = syscall.StringToUTF16Ptr(string(make([]uint16, 8192)))
    ofn.maxFile = uint32(len([]uint16(*ofn.file)))
    ofn.fileTitle = syscall.StringToUTF16Ptr(string(make([]uint16, 8192)))
    ofn.maxFileTitle = uint32(len([]uint16(*ofn.fileTitle)))
    ret, _, _ := getOpenFileName.Call(uintptr(unsafe.Pointer(&ofn)))
    if ret == 0 {
        return "", syscall.GetLastError()
    }
    defer coTaskMemFree.Call(uintptr(unsafe.Pointer(ofn.file)))
    defer coTaskMemFree.Call(uintptr(unsafe.Pointer(ofn.fileTitle)))
    return syscall.UTF16ToString((*[8192]uint16)(unsafe.Pointer(ofn.file))[:]), nil
}

func main() {
    file, err := rzFileDialog()
    if err != nil {
        fmt.Println("Error:", err)
        return
    }
    fmt.Println("Selected file:", file)
}

在WindTerm中，可以使用以下命令来调用此程序：

rz | go run filedialog.go

这将在WindTerm中启动rz命令，并弹出文件选择框。选择文件后，程序将在WindTerm中输出所选文件的路径。